Combination coal and gas range.



M. H.1EHMAN.

CUMBINATFON COAL AND GAS RANGE.

APPUCATION FILED-OCT. 11.1916.

Patented June 26, 1917.

2 SHEETS-SHEET I.

- 1/11- EL/v w- Kiw buoy M. R. LEHMAN.

COMBINATION COAL AND GAS RANGE.

APiLICATION FILED OCT-1| HHSv Patented June 26, 1917.

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE.

aux B. LEHMAN, F QUINCY, ILTIINOIS, ASSIGNOR TO QUINCY PATTERN COMPANY,

- and Gas OE QUINCY, ILLINOISQ'A CORPORATION OF ILLIN 01S:

COMBINATION COAL AND GAS RANGE.

' Specification of Letters Patent. Patented June 26, 1917.

Application filed October 11, 1916. Serial No. 125,023.

To all whom-it may concern: u

Be it knownthat I, MAX R. LEHMAN, a citizen of the United States,residing at Quincy, in the county of Adams and State of Illinois, haveinvented certain new and useful .Im rovements in Combination Coal anges,of which the following is a specification, reference being had thereinto the accompanying drawing.

This invention relates to-certain new and useful improvements incombination coal and gas ranges, the object of the intention being toprovide a range in which the oven thereof is provided with. a continuousburner chamber extending around three 0'!"- its sides beneath the bottomthereof into 'which'j'can be quickly inserted or removed therefrom asubstantially U-shaped burner, the legs of which extend into the burnerchambers formed on the sides of the oven insnch a manner that the hotair and prod uctsbf'c'ombustion rising from the burner will bedistributed equally within the oven.

' Another object of my invention is to pro vide a constpu'ctionof rangein which the usual form of oven which is surrounded by the ordinary coafines is not changed to any extent,'the bottom dhieof the range beingformed. with burner chambers to receive the burnei'ygsaid burner:chambers communicating with the lower portion of the oven 'througlf thjemedium of gratings Anothenobje'ctof my invention is to provide'acombination coal andgas range with an ovenhavinga vent in-the topthereof for the 'e'scapcflofthe' hot air and products of combustionwhich is protected by a baffle so astozpreveirt the'products ofcombustion *rising from the ffire boxf when the stove is being used asa; coal stove from passing into the "oven,

Another object of the invention is to provjde theburner chambers withair inlets so astoobtain the proper combustion and to supply air freelyto the burners so that the hot an. and products of combustion will beconveyed through the oven in order to enable the oven to bake quickl ZOther and further ob]ects and advantages of the invention will behereinafterset; forth and the novel features-thereof defined by theappended claims. 1

In the drawings,

Figurel is alongitudinal vertical section Fig. 5 is a detail perspectiveview of a portion of a casingof the stove showing the construction of astove at the right ban corner in order to enable the burner to beinserted within the burner chambers; and

Fig. 6 is a section taken on. the line 6-6 of Fig. 3. l

In carrying out my invention I employ a stove having the usual firebox1, ash-pit 2 and oven chamber 3 which is surrounded by the ordinary coalfiues in order to' enable the products ofcombustion'from the firebox tocirculate around the oven in. the 'or dinary manner as stoves of thischaracter now in use. The top of the stove is preferably provided with aforaminated portion 4 under which are adapted to be placed burners notshown. The oven chamber?) has vent openings 5 formed in the top thereoifor allowing the products of combustion entering the oven from theburning chamber to circulate through and around the same when thedampers have been adjusted, the

construction of dampers forming no part i of this invention.

Arranged over the outlet vents '5 of the oven is a baffle 6 forpreventing the products of combustion rising from the fire-box 2 fromentering the oven when the stove is being used as a coal stove, and iordeflecting the escaping products of combustion and hot air toward theside 'flues. Arranged beneath theoven chamber 3 are side burner chambers7 and 8' which communicat with a front burner. chamber 9 in order toform a continuous substantially U- shaped burner chamber extendingaround the two sides and front of the oven as clearly shoWnin Fig. 3.'1'

The side burner chamber 7 is formed by a housing and communicates withthe oven chamber" through a grating 10 which can be readily] removed,the bottom of the cham-' her being provided with air inlets 11 and thend of the chamber'is'provided with air inlets 12 at the back ofthestove in order tothe burners which to supply air freel will behereinafter ully described.

, and securin The side burner chamber 8 is formed by cutting away thelower corner of the oven thereto a substantially U- shapedhousing, saidhousing communicatin withthe oven chamber through a removable grating13/ The chamber 8 extends to the rear of the stove and is provided withair inlets 8.-

A .front bu1'ner' chamber 9 is formed by cutting oil a portion of thebottom. flue by arranging a longitudinally disposed ob-' hquely arrangedplate therein, and the top of the burnerchamber 9 is closed by a rating14 and the chamber is provided wit air in ets .15 beneath the oven door.4

The lower corner of the side flue of the stove at'the'front of the sameis cut away and a casing 16 is inserted in the cut-away portions-forminga passageway which communicates with the end of the front burner chamber"9 and. is of sucha size thatthe mixing" bell 17 of my improvedconstruction of burner 18 can be readily forced through the same whenthe gratings are re move and the oven door is in open position. M imroved construction of burner 1-8 is substantially U-shaped as shown having branches 19 and 20 adapted to extend into the side burner chambers 7and 8 the burner] being preferably, formed of piping chambers with thehaving perforations or cuts, 35

seen that I have provided a stove in which;

From the foregoingdescription it will be the oven has burner chamberscommumcating with 1 the lower portion thereof along two of its sides andthe front thereof, which chambers are closed by removable gratings whichwhen removed. form a substantially U-shaped burner chamber intowhichextends an opening from the outside of the stove to receive the intakeof the burner, said intake having a mixing bell. to receive a valvecontrolled-gas supply pipe.

In order to insert my improved construction ,of burner into astove' asherein shown and described, the gratings covering the burnerchambers areremoved and the burner 18 isplaced into the oven and canted so that thebell 17 can be-forced outwardly through the opening 16 and the bodyportion and branches 19 and 20 of th burner canthen be dropped intoposition within the side and front burner chambers, andby covering thebe protected.

When the burner is in position within the burnerchambers of the stove,air is supplied f freely to the burner chambers through the air inlets11, 12, 15 and 8 which. causes a circulation of the hot air andproductsof combustion through'th ovento pass out of the vents 5 into the finesof the stove and gratings the burners will around the oven so as tothoroughly heat the same.

I, claim:

l. A combined solid fuel and gas burning stove having an ovenv therein,providedwith the usual fines, said oven having vents communicating withthe top flue thereof, burner chambers arranged below said oven andcommunicating therewith alon two of its sides and front thereof, and aurner arranged within the front burner chamber having branches extendinginto side burner chambers, said burner chambers having air inlets.

2. A combination solid fuel and gas burning stove havin an oven thereinprovided with the usual ues, said oven having vents -in the topcommunicating with the top flue of the stove, burner chambers arrangedbelow said oven and communicating with said oven along its sides andfront, the front chamber having an opening communicating therewithextending through the side flue of the stove, a substantially U-shapedburner removably mounted within said burner chambers and having aportion extending out through the opening thereof, said burner chambershaving air inlets and gratings arranged within said oven for closingsaid burner chambers.

3. A stove having an even provided with vents in the top thereof, saidoven being cut away along two' of its side edges and the front thereof,gratings arranged over said edge thereof, gratings arranged over saidcut away portions, burner chambers arranged under said cut away portionsformmg a continuous substantially U-shaped chamber extending around twoof the side edges and the front of said oven, said burner chambershaving air inlets, the/front burner chamber having one of its endsarranged in alinement with an opening formed 1n the wall of said stove,and a substantially U- shaped blirn'r arranged in said burner chambershalfiin combined solid fuel and gas'burnin'g stove having an oventherein surrounded by.-

ventscom- 125 a'defiecting bafile arranged over saidvents,

t-he usual flues, said oven havi municating with the top flue 0 saidstove,

a substantially U-shaped burner chamber g a mixing bell extendingthrough said openin formed beneath said oven and communicating therewithalong two of its side edges andthe front thereof, said burner chambershavburner chamber.

. chamber. having arranged under saidcut away aillbng the door 7 6. Acombined solidfuel and gasburning'stove' having an oven therein surroundby the usual fines, said oven being cut away along its lower side edges,burner chambers portions havrear ends, said oven ortion in its bottomope'n'm thereof, a burner c amber arranged beneath'said cut awayp'ottion having air inlets and communicating fat one end with anopeningformed in the wall of said stove, a substantially shaped burner.arranged within said burner a" nnxing bell. extending ing air inlets attheir having a cutaway through the opening of; the wall of sand stove,{and gratings arranged overthe outaw-ay" portions of. said .oven...f .Ql .g. sa burner chambers. 1

7. A combined solid fuel and gas burning stove having an oven thereinsurroundedby the usualflues, said oven having its lower (-omiers cutaway, burner chambers arranged under said out-away portions, said ovenhav bottom along the door opening out ing. its

away, a burner chamber arranged under saishcut away portion having airinlets, said side burner chambers'having air inlets at their rear ends,said front chamber oomniunicatin g at one end with a casing extendingrthrough the side line of said stove, a substantially U-shaped burnerarranged within the front burner chamber having its branclnzs thereofdisposed in the sideburnor 'chalnlm'rs, said burner having a-mixingbel'l exteni'lingjth rough said casing, and gratings mn'iovahly mounted.over. said, burner chambers. 8. A combinedsolid fuel and gas burningstantially U stove havin' an oven therein surrounded by the nsua fines,said oven having vents communicating with the to fine of said stove, asubstantially .U 's a'ped burner chamber formed beneath said oven andcommunicating therewith along two of its side. edges in the frontthereof, said burner chamber bein provided with air inlets, a casingextending through the side. fine of said stove conimunicatin with saidburner chamber" at one corner hereof, a'substam tially U-shaped burnerarranged within said burner chamber .hajv-in amixing bell extendingthrough said casing, and removable gratings arranged within said ovenover said burner chamber..-

9. A combined. solid fuel and gas burning stove having an oven thereinsurrounded by the usual fines, said stove having a. substantiallyU-shaped burner chamberarranged beneath the overland communicatingtherewith, and a detachable substantially U- shaped burner arrangedwithin said burner chamber.

10; A combined solid fuel and gas burning stove having an oven thereinsurrounded by theusualtflues, said stove having a. sub- -shaped burnerchamber ary ranged beneath the oven and communicating 70 directlytherewith at the lower corners thereof, a ('letaehably substantiallyU-shaped burner arranged within said burner cham-' her and removablegratingsarrangedeover said burner chamber; i

In testimony whereof I hereunto afiix my signature in the presence oftwowitnesses.

Witnesses:

Jason R. Wrens, Arms C.'Hno1;nn.

